Computers are devices that perform logical and arithmetic functions. The original computers were humans employed to perform complex mathematical calculations and generally constrained to following a rigid algorithm without deviation. However, the term is now reserved almost exclusively for digital computers (from calculators upwards), which automate these processes
with extremely high efficiency. Digital computers include desktop PCs and laptops, but they are also found in smart phones, or as embedded devices in products ranging from cars and aviation systems to modern washing machines. The following companies deliver computers, peripherals and related hardware and software, including specialist data management solutions and rugged systems for military applications.
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